Three position warmer



FIG. 1 is a perspective view of a three position warmer showing my new design;

FIG. 2 is a right side view thereof, the left side being a mirror image;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a rear elevational view thereof.

The details shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

What is claimed is the ornamental design for a three position warmer, as shown and described. 